Looking for a little more speed, hence the retracts. Limiting factor is wife's bladder capacity. Might consider something slower if I find the right one though. Been window shopping so far, will need to find a broker after the holidays.

 

The difference is minimal, 5-6 kts at most. Put some wheel pants on the 206 and it narrows it down even further. Something to consider.

 

Info from Continental (courtesy of Rock_Auto)

Single Fan Airflow Rate 1007

Dual Fan Airflow Rate 1551

Note: the Fan obviously cools the engine but it also cools the AC condenser, if you find yourself in traffic with 100F showing for the outside temperature the dual fan is absolutely better. If it never gets above 80F where you live you will likely only notice the difference while towing or driving off road (low speed with lots of horsepower will get things really hot even if it is cold outside).

Take care

Paul


PS the Thermostat controls the temperature not the fan if it is really cold outside. The LR2 Thermostat does this really well with its complicated design. The only down side of a complicated Thermostat is that they fail every 10 years or possibly sooner. Don't forget to change yours.

 

I thought it was more like 30kts, 160's vs. 190's, but that can vary by year, engine etc. I'll take a closer look, I have no emotional need for retractable gear.

 

For that much speed you need a P210. Even harder to find and much more expensive to maintain, but it's like a Mercedes ML550 SUV.

 

@p_gill Since the topic of fans just came up in another post ... Do both fans in this Volvo dual fan unit always run at the same time? I thought the dual fan setup was configured to run one fan when needed, and the second fan only runs to cool the condenser when the A/C is turned on. But the LR2 may not have this dual fan control since the OE spec is for a single fan?

 

Remember that cooling is not about how much air you can blow but about how much heat you can remove from the engine compartment. I learned this the hard way when build a BD-5 homebuilt aircraft, whose engine sits in a box in the middle.

 

The dual fan is an option for the LR2.

https://parts.landroverlakebluff.com...embly-lr011905

Maybe something needs to be configured in the vehicle software so it knows you switched to the dual fan?

 

The dual fan comes with it's own controller unit, unsure if it differs from the single module which also has the second connection. To my knowledge, JLR SDD does not have an option to activate or reactivate. I would have to go and physically check mine for conditions and specifics but, from memory, I've seen both fans running on mine and it's the Volvo part.

 

The ECU sends a signal to the Fan controller and then the controller will turn on the Fans.
When I switch on the AC both fans turn on.
Note: the controller will also adjust the speed of the fan and it can adjust the two fans independently.


The LR2 is based on the Volvo S80 P3 chassis and I own one of each (both with the 3.2).
So I decided to get a Volvo dual fan for my LR2 with the understanding that if it didn't work I would switch back to a single fan and I would use the dual fan in my S80 when the time came to replace it.


I've now replaced both fans and I removed both fans by only disconnecting the transmission oil cooler and pushing it to the side (and a few other minor items that are easily removed).
Volvo and Land Rover didn't leave enough room for this and I don't recommend that you go this route.


I think someone made a comment about air flow, thermal gradient, Bernoulli's equation, adiabatic efficiency.................I don't know..............ignore those comments the Land Rover Engineers took all of that into consideration and the LR2 in hot climates came from the factory with a dual fan setup.

An upgrade like this is very minor and I wouldn't over think it.

I was concerned that the signal from the ECU may be slightly different for the dual fan vs single fan (and it might be) but I've been running my dual fan for a while now and it is amazing for cooling down the cabin in the >100F heat.
This thread shows a picture of the outside temperature according to the LR2 and the vent temperature on my S80. https://www.matthewsvolvosite.com/fo...7687&start=110

When I first installed the Volvo fan on my LR2 I did start both cars from cold with the AC off and engine at idle and I measured the amount of time for the fan to turn on and it was nearly identical.

For me the additional advantage of the dual fan is the redundancy. A single fan motor failure won't cause the engine to overheat.

Good luck

Paul